Abstract: An image printing apparatus (10) comprises a frame (11) to be fixed by suction cups (15) upon a surface (25) to receive an image. The frame (11) defines a space to receive a screen print frame (16). The position of screen print frame (16) may be adjusted by manipulation of the adjustable positioning cams (12, 13). Once accurately positioned, positioning cams (12, 13) are fixed by rotation of tightening knobs (18). An image of a selected color may then be printed upon the surface (25) using screen print frame (16). For overlaid prints in other colors, frame (16) may be removed, leaving at least some of the adjustable positioning cams (12, 13) in place such that a further screen print frame (16) of identical size and shape may be positioned accurately with respect to the previously printed image by contact with the positioning cams. Images of multiple colors may be printed in this manner.